The cable must handle the load without overheating.
Using an undersized cable is a major fire hazard. When too much current flows through a thin wire, it generates excessive heat, which can melt insulation and lead to electrical fires. Conversely, a cable that is too large is unnecessarily expensive and difficult to install. cable sizing calculator australia
She hesitated at that field. "Typical for Western Australia: 1.2 °C·m/W." She tapped in the value. The cable must handle the load without overheating
She pulled out her phone and opened a browser. She typed: . it generates excessive heat
While many electricians use "apps" on their phones, ensure they reference Australian Standards.
Several cable sizing calculators are available in Australia, including:
Australian calculators will ask for specific insulation codes: